Category Breakdown
Camera
≈ Tie
Main sensor resolution
≈ TieBattery
A3x
Battery capacity (5,100 mAh)
WinsCharging
A3x
Wired charging speed (45W)
WinsPerformance
—
AnTuTu benchmark
—Display
≈ Tie
Screen size
≈ TieWeight
A3x
Total weight (187g)
WinsValue
Smart 20 HD
Specs-per-dollar (server score) (8/10)
WinsFull Spec Comparison
| Spec | Smart 20 HD | A3x |
|---|---|---|
Display | ||
| 6.67" | 6.67" | |
| 720 × 1,600 | 720 × 1,604 | |
| IPS LCD | IPS LCD | |
| 120Hz | 120Hz | |
Camera | ||
| 8 MP | 8 MP | |
| Single | Dual | |
| No | No | |
| Fingerprint (side-mounted), accelerometer, compass, proximity | Fingerprint (side-mounted), accelerometer, compass, proximity | |
Performance | ||
| Unisoc T7250 | Mediatek Dimensity 6300 (6 nm) | |
| 3 GB | 4 GB | |
| 64 GB | 128 GB | |
Battery | ||
| 5,000 mAh | 5,100 mAh | |
| 15W | 45W | |
| No | No | |
Build | ||
| — | 187g | |
| 8.3mm | 7.7mm | |
| Glass front plastic back plastic frame | — | |
| IP64 | — | |
| Budget | Budget | |
Who Each Phone Is Really For
If your priorities differ from the verdict above, start here.
Best overall value
Oppo A3x
Highest value score — most specs per dollar.
Budget pick
Infinix Smart 20 HD
Lowest price while still competitive.
Photography
Oppo A3x
Highest resolution main camera.